CN214816816U

CN214816816U - Milling fixture for shielding cover

Info

Publication number: CN214816816U
Application number: CN202121004281.XU
Authority: CN
Inventors: 肖婷; 谭欣
Original assignee: Chongqing Merican Technology Co ltd
Current assignee: Chongqing Merican Technology Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-11-23
Anticipated expiration: 2031-05-11

Abstract

The utility model discloses a milling fixture of shielding lid, its characterized in that: the clamp comprises a clamp bottom plate, wherein a plurality of equal-height supporting columns are distributed on the clamp bottom plate, a cylindrical pin and a diamond-shaped pin are distributed on the clamp bottom plate along a group of diagonal angles, a plurality of lever pressing cylinders are distributed on the clamp bottom plate along the periphery, one equal-height supporting column is correspondingly distributed below a pressing part of each lever pressing cylinder, at least one beam pressing plate is further arranged above the middle part of the clamp bottom plate, the beam pressing plate is arranged in parallel with the supporting surfaces of the equal-height supporting columns, and at least one pressing head which is over against the equal-height supporting columns is arranged on the beam pressing plate. The beneficial effects of the utility model include: the clamping is convenient, the positioning accuracy is high, the deformation of the product after clamping is avoided, the processing quality of the product is obviously improved, and the product percent of pass is improved.

Description

Milling fixture for shielding cover

Technical Field

The utility model relates to a machine adds anchor clamps field, concretely relates to milling fixture of shielding lid.

Background

A shielding cover of communication equipment is a metal sheet part, and a plurality of positioning columns for positioning electrical components are arranged on the shielding cover and are milled after the shielding cover is cast so as to ensure the dimensional accuracy. However, when the existing milling fixture clamps the shielding cover, the pressing cylinders can only be distributed around, and the shielding cover with thin walls can be arched in the middle when the pressing cylinders around are used for pressing, so that the size error is large and even out of tolerance is caused after milling, and the phenomenon of cutter bouncing easily occurs. To change this situation requires redesign of the tooling fixture.

Disclosure of Invention

To the weak point among the above-mentioned prior art, the utility model provides a milling fixture of shielding lid, its positioning accuracy is high, warp when having avoided the product clamping.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a milling fixture of shielding lid which characterized in that: the clamp comprises a clamp bottom plate, wherein a plurality of equal-height supporting columns are distributed on the clamp bottom plate, a first positioning pin and a second positioning pin which are distributed along a group of diagonal angles are arranged on the clamp bottom plate, a plurality of lever pressing cylinders are distributed on the periphery of the clamp bottom plate, one equal-height supporting column is correspondingly distributed below a pressing part of each lever pressing cylinder, at least one beam pressing plate is further arranged above the middle part of the clamp bottom plate, the beam pressing plate is arranged in parallel with the supporting surface of the equal-height supporting columns, and at least one pressing head which is over against the equal-height supporting columns is arranged on the beam pressing plate.

Furthermore, a plurality of pre-positioning columns are distributed on the clamp bottom plate along the peripheries of the equal-height supporting columns.

Furthermore, two ends of the cross beam pressing plate are arranged on the clamp bottom plate through positioning blocks.

Furthermore, the positioning block is provided with an embedding groove for positioning the end part of the cross beam pressing plate, and a screw for compressing and fixing the cross beam pressing plate is arranged above the embedding groove.

Furthermore, a plurality of avoidance grooves are formed in the cross beam pressing plate.

Further, the pressure head is in threaded fit connection with the cross beam pressure plate.

The beneficial effects of the utility model include: the clamping is convenient, the positioning accuracy is high, the deformation of the product after clamping is avoided, the processing quality of the product is obviously improved, and the product percent of pass is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.

A milling clamp for shielding covers as shown in figure 1 comprises a clamp base plate 1, and a foot pad is arranged at the bottom of the clamp base plate 1. A plurality of equal-height supporting columns 2 are distributed on the upper surface of the clamp bottom plate 1 and used for supporting the lower bottom surface of a workpiece and ensuring that the supporting columns are supported on the same plane. Have two locating pins along a set of diagonal distribution on the anchor clamps bottom plate 1 the utility model discloses an in some embodiments adopt the combination of cylindric lock 4 and rhombus round pin 5 usually, in this embodiment because one of them locating hole is the flat hole what adopt is cylindric lock and flat pin for fix a position the product on anchor clamps. A plurality of lever pressing cylinders 3 are distributed on the periphery of the upper edge of the clamp bottom plate 1, and equal-height supporting columns 2 are correspondingly distributed below the pressing part of each lever pressing cylinder 3, so that pressing and supporting are correspondingly formed, and product deformation is prevented. Still be provided with at least one crossbeam clamp plate 6 above anchor clamps bottom plate 1 middle part, be two crossbeam clamp plates 6 specifically in this embodiment, this crossbeam clamp plate 6 and equal high support column 2's holding surface parallel arrangement, be provided with at least one pressure head 7 that just faces equal high support column 2 on the crossbeam clamp plate 6, be provided with two pressure heads 7 on every crossbeam clamp plate 6 in this embodiment, can select the number that sets up pressure head 7 according to actual need in other embodiments, pressure head 7 and crossbeam clamp plate 6 screw-thread fit, can compress tightly the product middle part in advance on equal high support column 2 through rotating pressure head 7, restart lever pressure cylinder 3 all around then can not appear the product middle part hunch-up deformation, pressure head 7 distributes at the position of product standby processing, it is effectual to compress tightly.

For facilitating the clamping and positioning of the product, a plurality of pre-positioning columns 8 are distributed on the clamp bottom plate 1 along the peripheries of the plurality of equal-height supporting columns 2, so that the product can be conveniently and directly loaded into the clamp.

In this embodiment, two ends of the beam pressing plate 6 are disposed on the clamp base plate 1 through the positioning blocks 9. The positioning block 9 is provided with a caulking groove for positioning the end part of the beam pressing plate 6, and a screw 10 for pressing and fixing the beam pressing plate 6 is arranged above the caulking groove. During clamping, the cross beam pressing plate 6 can be taken out of the caulking groove by unscrewing the screws 10, so that a product can be loaded on the equal-height supporting columns 2 of the clamp, then two ends of the cross beam pressing plate 6 are loaded in the caulking groove, the screws 10 are screwed down to fix the cross beam pressing plate 6, and finally the pressing head 7 on the cross beam pressing plate 6 is rotated to pre-press the middle part of the product.

In order to facilitate the milling of the cutter on the product, a plurality of avoiding grooves are designed on the cross beam pressing plate 6.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a milling fixture of shielding lid which characterized in that: the fixture comprises a fixture base plate (1), wherein a plurality of equal-height supporting columns (2) are distributed on the fixture base plate (1), a first positioning pin (4) and a second positioning pin (5) which are distributed along a group of diagonal angles are arranged on the fixture base plate (1), a plurality of lever pressing cylinders (3) are distributed on the fixture base plate (1) along the periphery, one equal-height supporting column (2) is correspondingly distributed below a pressing part of each lever pressing cylinder (3), at least one beam pressing plate (6) is further arranged above the middle part of the fixture base plate (1), the beam pressing plate (6) is parallel to a supporting surface of the equal-height supporting column (2), and at least one pressing head (7) which is over against the equal-height supporting column (2) is arranged on the beam pressing plate (6).

2. The milling fixture for the shielding cover as set forth in claim 1, wherein: and a plurality of pre-positioning columns (8) are distributed on the clamp bottom plate (1) along the peripheries of the equal-height supporting columns (2).

3. The milling fixture for the shielding cover as set forth in claim 1, wherein: two ends of the cross beam pressing plate (6) are arranged on the clamp bottom plate (1) through positioning blocks (9).

4. The milling fixture for the shielding cover as set forth in claim 3, wherein: the positioning block (9) is provided with an embedding groove for positioning the end part of the beam pressing plate (6), and a screw (10) for fastening and fixing the beam pressing plate (6) is arranged above the embedding groove.

5. The milling fixture for the shielding cover as set forth in claim 1, wherein: the beam pressing plate (6) is provided with a plurality of avoidance grooves.

6. The milling fixture for the shielding cover as set forth in claim 1, wherein: the pressure head (7) is in threaded fit connection with the cross beam pressure plate (6).